I would either call the manufacturer or visit their website and ask them a question online. They could have a numbering sequence that they could give you from the serial number to give you the year it was made.
Not sure if that will help. Good luck.
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'05 Mathews Switchback
QAD Ultra Rest HD
HHA OL-5000 Sight
4 inch Stealth Stabilizer
A/C/C w/100 grain Montec
If the bow you ask about is a Bear, black bear with some different looking brackets attaching the cams to the limbs. its the first bow i ever owned, i cant say exactly when it was made buti owned one in about 1985 or 86. hope this helps