Teeny Masters are supposedly super rare.
Here are my peewees from two Rosenthal boxes. I think I've seen the Rosenthal box with red in them also. I'm not saying I think that's what yours are. Just that I've been intrigued by little white based peewee patches for a long time ... and I've never been totally sure that I figured out who made mine. Much less what all companies made similar. .... I wanted mine to be Alley for the longest time, and I'm still not sure that they weren't made at the Sistersville site, after Mr. Alley moved to a new site.
http://marbleconnection.com/topic/20413-for-what-companies-did-rosenthal-jobber/?do=findComment&comment=178669