A little FYI:
There are 3 versions of the Bitcoin Penny Doodle.
1st - (2015) made in 2015 for the original releases of the 2015 Bitcoin Penny. These cards measured 5 x 3.25 inches. Had the 2015 CJB penny on the backside. Signed with a "C"
2nd - (2016-A) made in 2016 for the new release rolls. These cards were quite larger than the originals and were limited in their release. They measure 6 x 4 inches. They feature the 2016 SN coin on the backside. Signed as "Chris w/ smiley"
3rd - (2016-B) made in 2016, continuation of the larger 2016 cards. These newest cards measure 5.25 x 3.5 inches and feature the 2016 SN coin on the backside as well. Signed as "Chris w/ smiley"

And a little
more FYI:
The original (2015) cards were printed five (5) per sheet (8.5x11") on standard white cardstock, then hand cut on a Dahle 533 Professional Guillotine paper cutter, so many of those first-year THANK YOU doodle cards are a little off, dimension-wise. Some are a bit smaller; some are a bit larger. (However, my personal notes confirm that the intended dimensions of those 2015 doodle cards were
exactly 5" x 3.25"...so well done, MJ.)
For the 2016 release, I decided to splurge and have the THANK YOU doodle cards professionally printed as 6" x 4" postcards. (No more measuring and cutting for me!) However, because of the limited size of our padded shipping envelopes (which are just under 4" wide) as well as the smaller of our two standard shipping boxes (which suffers from the same limited width), we were forced to repeat the 2015 hand-cutting process for many of our 2016 shipments. (My personal notes confirm that the intended dimensions of the 2016(B) hand-cut doodle cards were
exactly 5.25" x 3.5". Again, well done, MJ.)
As for the "C" vs "Chris w/ smiley" signatures, I really hadn't noticed the signature change, so I have no clue as to when we made the switch, and it's quite likely that we made the switch sometime
during 2015 (or 2016) and not
exactly between the two releases. (Does that confusing explanation of jumbled words makes sense to anyone?)
MJ has done an OUTSTANDING job of cataloging these Bitcoin Penny THANK YOU doodle cards!
Thank you for taking the time to do this, MJ!

Regards,
Chris