Vintage Duraglas Apothecary Jar

Nice vintage square Duraglas apothecary jar measuring about 4.5" tall & 4" across. With lid on is about 5.5". In very good condition. These were made before they put the plastic/rubber around the rim. numbered on bottom 10 I P 1 ( I guess that might be the mold #) Has some other numbers on bottom side but I can't make them out.(too small) Good condition.