On left is the profile found with the reversed "16" shop mark. Note the shallow dome profile and thick body.
On right is a similarly thick body profile, but the dome is more fully rounded out. This style wears the small 00, 01, and 02 shop marks. At present, I cannot lay hands on either example with drips, but seem to recall both being found with them. This latter profile type is near/identical to the type found with the large XO, X1, and X2 shop marks.