Piffle! Anyone who is seriously familiar with the heart of the Allentonian steed knows there is only one way...
Ghirardelli Chocolate. 
+1 on what Mos said. S/N is most likely either on the left rear dropout or under the bottom bracket. Not that it will do you any good. There's no decoding that I'm familiar with.
It probably has a Shimano/333 rear hub so date coding isn't possible there either.
If the bike has a one piece crank, which I think it does... Pull the crank out, clean the grease off the center section and you'll most likely find a date cast there. This would be the absolute earliest the bike could have been made. Chances are the crank sat around anywhere from a month to six after it was made.
Enjoy your bike, Ross isn't the most esteemed marque in bicycleland but the following is growing. Pictures would be wonderful!