The 10" amber Thatcher's 1 quart bottle has interior cracks around where the wire would go on top. You cannot feel sharp edges inside or outside from this.Also has 2 cracks but they do not feel sharp outside but too deep to tell if they are sharp inside. There is embossed cow & milker with ABSOLUTELY PURE MILK ( crack is under LUT) The bottom reads Bottle Made in Italy & Crownford China Co Company 1955 (?) Rough on Base. The clear bottle seems without cracks Same embossing & Writing on the bottom. Baby Face has fain writing which doesn't show up well. It has a sctratch from nose about 1/4 " The bottom reads one quart liquid dairy top patent design no.9850(?) Sealed Registered The bottom has Galenke & Number 3 (?)