Columbia subject headings:
Callao (Callao, Peru)--History--Pictorial works.
Callao (Callao, Peru)--History--Sources.
Postcards--Peru--Callao--History.
Postcards--Peru--History.
Sablich Solera, Luis, 1882-1968.
Harvard subject headings:
Callao (Callao, Peru)--History--Pictorial works.
Callao (Callao, Peru)--History--Sources.
Postcards--Peru--Callao--History.
Postcards--Peru--History.
Sablich Solera, Luis.
Princeton subject headings:
Callao (Callao, Peru)--History--Pictorial works.
Callao (Callao, Peru)--History--Sources.
Postcards--Peru--Callao--History.
Postcards--Peru--History.
Sablich Solera, Luis.