Someone called me describing the tablet, and I thought they were talking about the <B> tablet. The person then emailed the first photo to me to identify (the 3-d looking B or B7 imprinted tablet). I found the <B> tablet on either ident-a-drug or Lexi-Drugs, but I forget which one...if I find it again I'll update the photo. Thanks for looking!
Thanks for the clarification of the <B> tablet. I subscribe to Identadrug, and it's not in the database. So apparently you saw in on Lexi-Drugs or another database.
Re the B, B1 or B7 tablet, I can't find anything yet.
I'm assuming it's a vitamin or OTC cold med, but I have no idea. It is approx 1/4" in diameter.
That's a very small pill - 1/4" is between 6 and 7 millimeters. That pill would be approximately the same size as phenylephrine or maybe an antihistamine like loratadine. I doubt if it's a vitamin since most of them are huge.
We'll keep looking.

Thanks for the really neat images.
The imprint is very different and interesting.
Let's get your other two images in here:
The first one definitely looks like a different view of your original image. The second image is another pill, right?
I don't know what either tablet is but the <B> one is familiar. Seems like someone once answered that the <B> is aspirin or some other OTC analgesic. If you know what <B> is, please let us know so we can document it. Thanks.
In the meantime we'll keep looking for B1 or B7.