Gipiemme tecnos had a different (extrusion) cross section compared to your wheels. Yours is a perfect U shape where the tecnos have a dimple in the side of the U... hope you understand what I mean lol. You can see the lighting play on the dimple on the images of the dodici rim (same as tecno) you've linked to.
Did you check the currect Gipiemme catalogue? They still have a variety of track wheelsets but I'm not sure if they do 16h wheels. I do know they have a similar rim shape to what you have.
Gipiemme tecnos had a different (extrusion) cross section compared to your wheels. Yours is a perfect U shape where the tecnos have a dimple in the side of the U... hope you understand what I mean lol. You can see the lighting play on the dimple on the images of the dodici rim (same as tecno) you've linked to.
Did you check the currect Gipiemme catalogue? They still have a variety of track wheelsets but I'm not sure if they do 16h wheels. I do know they have a similar rim shape to what you have.