$13 was a lot more money back then. When I was a kid in the 1970s out post-Christmas shopping, I lost a $10 bill that was a Christmas present from my aunt. $10 was a huge amount of money--I relied on that gift and spent the whole year dreaming of it like Ralphie Parker dreaming of a Red Ryder BB gun just a few miles away and thirty years before--but we didn't know him yet.
I think my allowance was 25 cents a week, which didn't carry nearly as far in the 1970s as it did in the 1960s when my older brothers received that same amount at the same age. My parents didn't adjust for inflation in over a decade.
That $10 bill I lost somewhere between Uncle Bill's on one end and Best Products at the other end of the Shoregate Shopping Center in Willowick, Ohio and the totally ruined cold, sleeting, winter day it caused is something that still gets brought up at family get togethers almost or possibly an entire forty years later. I'm guessing, late December 1978 or early January, 1979. Details of warm, happy memories of past Christmases by the leaning painted pop-up cardboard fireplace, apparently, have all since been forgotten as topics of discussion.
Too bad this one isn't lit up. There's a small red Chrismas bulb behind the "flames" that lights up. It's pretty fun, actually, for being so hokey.
By the way my red-faced dad reacted, that $10 was worth at least fifty in today's money, and the inflation calculator agrees.