c. 1974–1977
RK, M Jonasson
glass
" " signature with pattern number (when factory was owned by Royal Krona). .
Marks & lettering
12 marks
c. 1977–1981
Kosta, MJ
glass
" " initial signature with pattern number (when factory was owned by Kosta Boda). .
Undated
Mats Jonasson, Maleras, Sweden
label · black, clear · glass · Sweden
" " black & clear rectangular plastic label.
Undated
Mats Jonasson, Maleras, Sweden, Full Lead
label · black, clear · lead crystal · Sweden
" " black & clear rectangular plastic label.
Undated
Mats Jonasson, Signature Collection, Handmade in Sweden, Lead Crystal 28% PbO
label · gold · lead crystal · Sweden
" " gold rectangular foil label.
Undated
Mats Jonasson, Signature Collection, Handmade in Sweden, Full Lead Crystal
label · blue, gold · lead crystal · Sweden
" " blue & gold rectangular foil label.
Undated
Mats Jonasson, Sweden, Full Lead
label · black, grey, gold, white · lead crystal · Sweden
" " black, grey, gold & white rectangular paper label.
Undated
Mats Jonasson, Sweden, Full Lead
label · white, grey · lead crystal · Sweden
" " white & grey rectangular plastic label.
Undated
Mats Jonasson, Sweden, Full Lead
label · black, clear · lead crystal · Sweden
" " black & clear rectangular plastic label.