Antique Early 1900’s Sessions #31 Store/Railroad Regulator clock

Hi,I just purchased this Sessions # 31 Regulator clock at my local Flea Market it measures approximately 34.5” inch by 14.5” inch by 3.5” inch the upper glass is missing which I’m going to replace but not sure how thick the glass should be the case is oak I had no idea if the clock worked but I was able to steal the clock for only $25.00 witch I knew was a steal of a deal (after a day the clock has been running great! I’m not sure of the exact date but I’m sure it’s early 1900’s originally when I first saw the clock I thought it was a reproduction so I walked away then I decided I better go back and double check when I did I saw that for sure it was a true antique over 100 years though the dial paper has been replaced nice replacement also not sure if there was more to the top of this clock like a top crown ? I would love to more about this clock like that exact age and how thick the glass should be for the replacement thanks for reading/viewing .