Posted By:
Rob D.Hi Chris,
These did not come on thick stock. Very thin. And it's not uncommon to find them in "ultra high grade" (sorry) -- primarily because they were issued in envelopes and are often found in very clean condition. As Leon mentioned, they're typically a cream color, but there are some sets from the early to mid 1950s that are more white.
There was a set (1948) reprinted in the early 1990s, but they are smaller than the original 6 x 9 size.
If you can post a scan, I think it would be pretty easy to tell.
These sell for just a few dollars each usually, so I don't see a huge upside for reprinting them.
Hope this helps.
Rob