In animal tests, the new variant appeared to relieve the pressure while creating little of the red-eye effect.
In 1964 there appeared main variant (with no suffix letter), manufactured until 1993.
In yet others, the variants appear to reflect differences in stroke order.
By 1869 a variant of this chain had appeared.
Over the years, many lyrical variants have appeared, but the basic narrative remains intact.
Other variants on morasses, generally with added structure, have also appeared over the years.
However, the European variants also appear occasionally in formal speech among a minority of speakers.
In 1930 an upgraded variant appeared (see 107 mm gun M1910/30).
No variants appear which exploit this environment more effectively.
The most extremely backed variants do not appear at all in outer-city speech.
