Beyond it being from April 1981? 
Circuit is simple enough, though, but I suspect you could replace the LF353 with a TL072 that might be easier to source. On the other hand, LF353 is apparently still being made.
EDIT: Seems Tayda has the LF353, so probably not that hard to source. But I still suspect a TL072 might work just fine here (lower noise, less distortion, a bit lower typical bandwidth).
…
PS: They’re promoting Ultravox’ Vienna on the cover, a song that famously uses a CR-78 drum machine, but also has several precise tempo changes, something that caused certain challenges for the drummer when playing it live, since the CR-78’s tempo control was very much analog…
