I have quite a few of the A64 Type from the early 1930's. All canceled and most in pretty good condition. As with many of these early German stamps, some of the canceled ones seem to be worth more than some of the unused ones. In particular Scott "s 394 & 407 of the 15pf are worth more used than unused.
The two stamps on the left here look to me like I might have one of each of they might just be both #407. Unfortunately the scan is not correct on the colors and the scan looks more red than the actual colors of them which is more like purple/maroon. But the two do look slightly different in color and that is why I thought I might have one of each 394 & 407. But the color difference is just so slight so again I am not sure.
Then the 2 black ones on the right which are just solid black I can't seem to find. I did not see any denomination listed for 1pf under the A64 Type so just wondering if they are from a different series possibly?

Cheers...
Marc