Assertion: toilet seat's design | /r/HasProperty | dated to 1950
Facets:
value: probably
type: DEGREE
Source sentences:
text: Simple valve closets are used on most older style Russian trains, made in Eastern Germany (Ammendorf factory, design dated probably to the 1950s), employing a pan-like shutter valve at the base of the pan and discharging waste directly onto the trackbed below.