To all,
since years I am looking for these rare latches.
Does anybody know where this part can be find or from which car they are?
After years I found only this very similar parts. Trunk lock from a Grecav Eke (Grecav founded in 1964 in Gonzaga /Italy).
Maybe is this a following version from the first original one, so it would be interesting which is the car with the first version, which looks like the Mangusta ones :-)
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The part on the left is essentially handmade from what I have seen. All four of mine are different from one another, and cannot be swapped around.
Christian, if it makes you feel any better, at least I think you have found the best clue on the most obscure part in the car...Only the Ayacsa AC box may be close. The plastic used here around the spring pin seems to describe a different decade than the Mangusta...But still, maybe useful start to making replacements. See https://www.grecavricambi.it/r...rtellone-posteriore/ , 29 euro, it seems the Eke is a contemporary car... Part number BAF33-0007409.
I need all 4 pins, and won't have a real car without them. Even, Anybody who has theirs and also the phone number for a machinist, my Paypal is ready...Or even, if anybody could be so kind as to provide pin drawings from their car--Lee
Contact Larry Stock at Pantera Parts Connection (PPC) Carson City NV, he has Mangusta parts too, but moreover his dual business Polymer Plastics Corp (PPC) specializes in plastics and metals machining!
I bribed someone into sending me a Grecav Eke pin, unfortunately didn't get enough time to get a sense of whether it fit in the Goose latch (in between when DHL dropped off and when I had to be on the plane back to home...). But here are some measurements; the bolt is M10 (as the Goose). But I suppose the key measure is the distance to the 'hole' center (6.0mm from where the pin starts to taper).
I tried to seat this into the Goose latch, and wasn't sure if it was seating deeply enough...There are no identifying marks whatsoever (to give a clue to a manufacturer).
Oh, so close. The 4 door Appia had suicide doors on the rear and no central pillar between the doors..As I can tell, the pins were located at the sill and are latched at the doors.
Christian, I know there is some gap yet to be filled (in between the Appia, which stopped production in 1963, and the Grecav Eke, and somewhere in between there is yet another secret probably kept by a panel van...) but there are at least 3 different pins in this kind of latch. The Grecav pin is fatter at the bottom and and will not seat as deeply as the Mangusta pin. The Mangusta pin tapers at 20mm length.
for example, the Grecav plastic latch is 17mm opening at top, 20mm thick and 12mm at bottom (so a 7' angle). Nate and Denis helped, the Goose pin is more like a 9' angle.
Asking every Italian ebayer with Appia parts 
, a picture showing what seems to be an 8mm thread and 14mm diameter pin (vs. another mystery car, with more like 17mm diameter and a 10mm thread, as the Goose) below. Note also the similar lathe marks on between the Goose pin and the mystery pin on the right.
Finally, the fit on the Goose seems to be a match between the rubber bumper on the engine cover matching the recess of the pin. Note about 10mm spacing using what are probably 10mm "small OD" washers (at 18mm diameter)--so the stackup of washers is tuned by measuring the recess of the latch pin and then adding the height of the rubber bumper next to the pin.
Damn, we're close...btw, I haven't found a Lancia part that was used exactly on the Goose (close but no cigar on everything I thought was right before, for example Fulvia sun visors...!) Lee
One step forward, but 15 years back 
Help from Alberto, selling vintage Lancia parts on Ebay and whose father keeps a vintage car museum in Italy--who provided the next clue--that the 'big' pins similar to the Goose latches are from a Lancia Ardea! The postwar Ardea had the same opposing doors as the later Appia, but the Appia pins were downsized (as I can tell) to ~14mm diameter on an M8 thread, vs. 17mm diameter on M10 thread. But finally, if the latching pin (in the latch) is the same, Appia pins might just work.
Somewhere between the Appia (which stopped production in 1963) and the similar latch used on Grecav Eke, there is an answer waiting for us on our ~1967 DeTomaso... the contermporary Perno guida por chiusura sportelloni may still be found...But if I can size up the rubber bumper, I have enough to hold my engine covers down...! Lee
Attached is a drawing I made, one of my cones. The length can vary a little due to the degrees. But should be between 31 / 32mm.
The 45 degrees at the tip were attached manually and can therefore vary a bit in length, but this incline has the function of moving the bolt in the counterpart.
Best drawing yet, vielen Dank, Bernd!
