Postage Stamp of the Week: Pioneer Probe

Last week I won a 7" record on eBay ("Jumpin' the Gates of Heaven" by Marcus Terry, something for the Knievel Rock collection). It arrived a few days ago in a manila envelope, plastered with 22 stamps. Crazy thing is, 14 of those stamps were ten-centers, all issued in 1975! You'd think they'd be selling those on eBay too, but whatever. The coolest one depicts Pioneer 10 flying toward Jupiter. Here's more.