Due to the great interest in Canada's Small Queen stamps on this forum, I thought it would be a good idea to make a list of links to the major discussions. These are posts I feel have very useful information. Here is what I have compiled so far. Please post any I may have missed.
They are listed by title, author and date, in no particular order.
Small Queens identification (Dave9911 08/17/2011)
https://goscf.com/t/17809This one, despite the title, has very important information on guide dotsScott 37 on cover...different cancel (Wert 02/16/2016)
https://goscf.com/t/47981Canada - The Small Queens Issue, 1870-1897, by Allan Oliver (BeeSee 04/13/2015)
https://goscf.com/t/43028Oxidation on 3cent small queens (plsllvn, 01/06/2010)
https://goscf.com/t/6683&SearchTerms=small,queensCanada Small Queens: 3c Worn Plate (BeeSee 01/06/2015)
https://goscf.com/t/41299Canada Small Queen Identification Table: Position Dots (Gilles le timbre 01/01/2015)
https://goscf.com/t/41229Hard to find 3 cent Small Queen (Watermark, 03/16/2014)
https://goscf.com/t/36764Canada Small Queen #37 3c Montreal and Ottawa Printings I.D. (BeeSee 01/28/2012)
https://goscf.com/t/22248Small Queen Copper 3¢ ? (Stallzer 03/03/2013)
https://goscf.com/t/31050Never seen before 3cent Canadian Small queen ?? (Nitrolures 07/04/2011)
https://goscf.com/t/16714Small Queen or Large Queen - 3cents dark red brown ? (Koala 01/17/2012)
https://goscf.com/t/21892Small Queen 3c squared circle cancel. (Lithograving 10/14/2012)
https://goscf.com/t/11198Small Queen pair cover (Jamesw 02/26/2013)
https://goscf.com/t/30961Is this 5c Small Queen Slate Green (Unitrade 38) or Grey (Unitrade 42) or.... (DJCMHOH 04/11/2016)
https://goscf.com/t/48828