Interesting scopes. 1601 is, as mentioned, a very late Wollensak probably delivered after the war as "work in progress" when the contracts were cancelled. Could use a pic of the nomenclature stamp, should be two-line with no FSN.

The other one is odd. Are you positive about the serial? 54oo would seem to be right at the beginning of post-war commercial production when leftover military parts were common, but it isn't typical. More pix!