Set of 2 detailed, 3D printed stern aircraft crane strongbacks for use on US Navy battleships - Nevada, Oklahoma, Pennsylvania, Arizona, New Mexico, Idaho, Mississippi, Tennessee, California, Colorado, Maryland and West Virginia.
Designed for use with the crane boom on Tom's Modelworks sets 3502 and 3528. Will likely work for any manufacturer's set that includes this style of crane.
Used on these ships throughout World War 2 even after modernizations