It looks like an Ideal 110 model (generic) the squarish/guillotine type vending gates are a give-away as is the round main-door /plug-lock ( just like the kind found on Ideal & Glasco sliders) they are kind of unusual!
here's a picture of one with a Squirt sign on it.
later models also had a lightup sign available ( I sold two 7up Ideal/100 lightup vendors myself)