Mine only has serial number tag only (a steel ID serial number tag) but as far as a model number??? how many years did they make the 890 series or a is it a 28-207 the top cover has a red logo Delta / Milwaukee it has a cast iron hollow upper arm. It hade a 1.5 hp 3 phase motor on it which I removed and installed a new 1 hp single phase 120 volt motor. it has the belt pully vertical cover. and the open Delta stand. the seller was asking $725 I got him down to $300. In NW Ohio these saw are going for $500-$850
