Nope - access any parts schematic on-line and attempt to locate the part entitled "anvil" on a reel mower.
Quite simply it doesn't exist.
Now search for either "bed knife" or "bed bar assembly".
Additionally you are quite incorrect regarding the reference that a reel mower operates in a "fixed cutting" situation.
Now, if you can - in the off chance - locate a reputable schematic that lists an "anvil" for a commercially spec'd reel mower I'll be the first to redact my previous comments.
Nice Try = You Suck Spelled Differently