Hello Bob, do you know the production years for the two numbers 63339 and 75788? Both are Technika IV, one is the old version, the other the newer one. Thanks a lot in advance! Kenny
https://www.amazon.com/-/de/dp/3746058716/ref=sr_1_1?__mk_de_DE=%C3%85M%C3%85%C5%BD%C3%95%C3%91&dchild=1&keywords=yapn+yet+another&qid=1586595123&sr=8-1
This is a good one!