This is a small bronze seal. Is this phrase from a poetic or philosophic text?
The characters are
which in today's standard would be rendered as 「熙熙春物見昇平」, roughly translating to
the harmonious spring scenery greets peace and tranquility
Some notes on character identification:
「熙」 uses the full form of semantic 「火」 as opposed to 「灬」.
and corresponds to the same style for 「昇」:
「平」 appears as the Shuōwén small seal form 「𠀒」: