What the value of a 22 Remington single shot rifle serial number 33?
In order to help I would need a model no or a good description and any writings to identify why kind of single shot you have. In addition in order to determine value I would also need a good description of the condition including if appropriate and approximate much blue is left or how faded, case hardening, nickel, flaking, scratches, bumps, finish on wood etc. In most cases low serials might bring a (very) slight premium and many people simply do not care especially if this is a shooter and not a high condition collector piece.