I found a perf measuring guide in the shoebox of loose stamps and I used the Stamp Smarter tool to attempt identification. Is this a Scott #504 stamp? According to the perf measuring guide, it has 11 perfs.
:) Excellent! I don't have any supplies to identify watermarks yet but I'm noticing that sometimes I can see them if I hold a stamp up to the bright lights in my dining room. The stamps from the German Empire seem to be particularly easy to see watermarks on. Haven't heard of toga lines - more researching to do! :)
Here's two websites that will assist you in W-F identification. It takes time but eventually you'll get the hang of it. Its like a whole hobby in of itself!
a quick and easy watermark detector is to use ronsonal lighter fluid if you don't have any detector fluid...and a black dish of course. it works, but doesn't evaporate as well.
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