I thought it was junk

[mfc83]

as i detect sites i take all my trash finds with me as i was dumping pocket i seen this has numbers on it so i washed it off and it looks like a calender there are days of week across the top and numbers but the in reverse so i guess it was some kinda stamp anyone ever seen anything like this ?

 

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[Az Old Noob]

Never saw anything like that, but it's a pretty cool find.
How big is it? In the pic it appears pretty small.

 

[mfc83]

about 1 inch by 2 inch

 

[Beeps in my sleep]

Part of one of the Roller stamps used to date things at businesses?

 

[mariposagold]

Definitely interesting and worthy of further investigation. I'd be excited about this find.

HH
Mariposa Gold

 

[g-olden years]

Would love to dig that! Interesting that the numbers are italic, the block is made for a specific month though month not stated. Are the small designs flowers? Andi

 

[Zodiacdiverdave]

Well, it's not super old but it is super cool. Great find, try using some water color paint and make a print, then post it up here. You may be able to nail down a possible date on it.
ZDD

 

[jeff of pa]

unfortunately without the month (one of 4 each year with 30 days)
it is hard to tell what possible dates had a Wednesday the 1st..

Cool Calendar stamp find though

 

[kenstein]

Well, it's not super old but it is super cool. Great find, try using some water color paint and make a print, then post it up here. You may be able to nail down a possible date on it.
ZDD

With the first day of the month being Wednesday, and thirty days in the month, clue #1 and 2. That narrows it down to either April, June, Sept, or Nov. With the flowers (clue #3) I'm guessing April, possibly June. Only nineteen possible years since 1885 (don't quote me, it's late). A fourth clue may be the composition of the plate itself. I'm guessing this is made of lead. I don't know what years that was done, but I'm sure that info is out there. Just my two cents worth, Hope you don't mind my meddling. This is a cool find. I have a lead plate that I found. I think I'll try the suggestion with the water color paint. Mine is a picture of something, possibly flowers.