There are 2 Peter Ladd trading cards tracked on HobbyCardIndex, spanning Baseball. The most valuable is the Peter Ladd #271 at $1.99 raw.

Source: HobbyCardIndex · Updated daily · https://hobbycardindex.com/players/peter-ladd

Peter Ladd Cards

Name: Peter Ladd Card Price Index — Historical Data
Creator: HobbyCardIndex
License: https://hobbycardindex.com/legal/terms

2 cards · Baseball

All Peter Ladd Cards