undated

The works are undated but all have been made since 1948.

They were undated, except for the day of the week.

I'd say notes like that are undated more often than not.

Issue 9 started giving a month, instead of a date, and Issues 15 through 19 were undated.

It is undated but appears to have been written in 1956.

It is undated but thought to have been painted about 1877.

One boy described it in an undated letter to his mother.

She also got him to sign an undated statement and a little check.

The old records are undated, but one was for autumn.

The charter is undated, but must have been written between 1189 and 1198.

They were all undated, but that wasn't very important, since one day had been pretty much like the other.

But though signed by the artist, the painting was undated.

The note was undated, and without either signature or address.

The church is undated and was partly restored in 1877.

They are typically undated and without information about the size of the edition.

Its techniques may also be used to help date undated documents.

The first edition of the book, published in Boston, was undated.

The period is undated, but it seems more like the near future than anything futuristic.

Early issues of the magazine were undated, but it is believed the first issue was published in 1969.

Most of her drawings are undated, although one shows a date (1904) above the door.

According to a report by the local authorities (undated, but published some time between 2003 and 2009), the town's population was 9,150.

Not much is known about this group of volcanoes and they remain undated.

Then undated photographs with people whose names she couldn't remember.

Includes two photographs: the buildings, undated, and the community, early 1974.

Not that her expulsion made way for an undated feminist studies.