Very Early
The big cord, 8.2 amp motor and the fact it says Martin Parry co gives it away, im not the Rainbow expert, Clay Floyd is , but Martin Parry was taken over in 56, it was a hostile takeover, It seems one day a group of men from Ward industries came to President T.Russ Hill's office and announced they had bought up controlling interest in his company!!to say the least he was mad, Ward wanted Rexair for their nice modern factory in Toledo, they moved Rexair production to a ratty old factory in Syracuse NY, The mistake they made was keeping old man Hill on as a figure head....he along with JV Sanders decided to bankrupt them so they could take the company back, they did this by encouraging all the dealers to sell machines to anyone and everyone,...thus by 1959 they had hung Rexair with 9 1/2 million dollars of debt,......In 1959 dollars, thus in 59, they bought the company back for 95,000!!!Clay said that this serial number is fairly high for a Martin Parry machine, so it would have been sometime in 56,the next year they redesigned the motor so it used 7 amps as many homes were inadequately wired.In 60 the machine then went from being called the Rexair, to being called the Rainbow, made by Rexair.