Canadian Auction magazines Sothebyis + Christieis - $15 in Montreal, Quebec for sale

Christie's in Canada brochure (The Wilson Mellen collection of Indian artefacts) 1975.
Black + white pictures. 64 web pages. Great reference publication. 15$.
Christie's in Canada brochure (Essential Paints, Drawings, Watercolours, and 2 Bronzes) 1972.
Black + white illustrations. 64 pages. Great endorsement book. Next to each description there are 2 numbers (costs?) in ink. 15$.
Fraser Art Public auction catalogue 1987. Canadian + International Art + Clocks, Watches + Jewelleryb w illustrations + some colour ... intriguing to see the estimations of the Rioplelle (3500-4500$) and Marc-Aurelle Fortin (2000-2500$)....15$.
Fraser Canadian Fine art Superior Auction brochure 1972 ... all shade illustrations. ... Marc_Aurelle Fortin price quote 20000-30000$... next to quote 38000$ in ink. ... ... 25$.