Try e-gunparts.com
Your Marlin model 989 which was a semi auto promotional model will range in price from 75-150 dollar,depending on overall condition.
try eBay that might do .
989 = CMLXXXIX
1, 23, 43, and 989
48% of 989 is 474.72
989 + 657 = 1646
my name is chubaka . my number is 1 989 2394358 . call me
0.0546
989 = 23 x 43
Yes, 989/43=23
989 x 5 = 4945