van Dam TBT117, 5c, 19427, "CANCELLED","TELEPNOIE" w/m'd pane,  Bell Canada Telephone Frank
NOTE:  This is a very interesting pane.  It has been stamped as "CANCELLED", however; it makes no sense why the reverse was cancelled.  The cancelled stamps can be seen lightly from the front.
Also the watermark can be seen without fluid as part of the "SUPERFINE" emblem on
pos. 19 and pos. 13 stamps.  This pane also has Jumbo tabs, at least 4mm taller than others that I have.  All-in-all, a very interesting pane to add to your collection!