We purchased this piece at a drug seizure auction about 20 years ago. My wife recovered the seat, but the original cover is still intact underneath. The only identifying markings - 354 22/2 AMP2 XZ PUR XK - are written inside the frame in marker. What can you tell me about it's origin or estimated worth?Click image for larger version.  Name: image.jpg  Views: 208  Size: 183.3 KB  ID: 7578Click image for larger version.  Name: image.jpg  Views: 208  Size: 186.2 KB  ID: 7579Click image for larger version.  Name: image.jpg  Views: 222  Size: 187.9 KB  ID: 7580Click image for larger version.  Name: image.jpg  Views: 227  Size: 189.8 KB  ID: 7581Click image for larger version.  Name: image.jpg  Views: 214  Size: 193.0 KB  ID: 7582