> Source: https://www.openingbid.art/artist/wilhelm-egon-wiedemann · updated 2026-11-01

# WIEDEMANN, WILHELM EGON (GUILLERMO) (1905–1969)

WIEDEMANN, WILHELM EGON (GUILLERMO) is a German artist with 12 auction lots recorded since 2005, median price $17,378. Some sold prices are hammer-only and exclude the buyer's premium; they are marked on this page. Some sold prices are not yet verified as premium-inclusive or hammer, and are marked on this page.

A work by WIEDEMANN, WILHELM EGON (GUILLERMO) is recorded as sold in 2025 for $22,343; whether the price includes the buyer's premium is not yet verified, according to OpeningBid's index of auction results.

## What is a WIEDEMANN, WILHELM EGON (GUILLERMO) work worth?

Across 8 sold lots tracked by OpeningBid, the median price of a WIEDEMANN, WILHELM EGON (GUILLERMO) work is $17,378.

The median WIEDEMANN, WILHELM EGON (GUILLERMO) painting sells for $23,686 across 6 lots.

The median WIEDEMANN, WILHELM EGON (GUILLERMO) work on paper sells for $9,943 across 2 lots.

Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.

## Price breakdown by category

| Category | Lots tracked | Median price | Record price | Sell-through | Last sale |
|---|---|---|---|---|---|
| Paintings | 10 | $23,686†‡ | $65,028‡ | 60% | 2025-11-28 |
| Works on Paper | 2 | $9,943‡ | $10,466‡ | — | 2022-07-01 |

† hammer price — buyer's premium not included.

‡ reported price — whether it includes the buyer's premium is not yet verified.

## Price by size

### Paintings

| Size | Sold lots | Typical range (p25–p75) | Median | Record |
|---|---|---|---|---|
| medium (50–120 cm) | 6 | $14,895–$43,389†‡ | $23,686†‡ | $65,028‡ |

† hammer price — buyer's premium not included.

‡ reported price — whether it includes the buyer's premium is not yet verified.

Size is the work's longest edge. Cells appear only with at least 5 sold lots.

## Notable results

| Medium | Year | Price |
|---|---|---|
| Paintings | 2018 | $65,028‡ |
| Paintings | 2020 | $49,509‡ |
| Works on Paper | 2022 | $10,466‡ |
| Works on Paper | 2022 | $9,419‡ |

‡ reported price — whether it includes the buyer's premium is not yet verified.

The highest recorded result in each medium. The full sale history is in the OpeningBid app (free sign-up).

## Frequently asked questions

### What is a WIEDEMANN, WILHELM EGON (GUILLERMO) worth?

Across 8 sold lots tracked by OpeningBid, the median price of a WIEDEMANN, WILHELM EGON (GUILLERMO) work is $17,378. The median WIEDEMANN, WILHELM EGON (GUILLERMO) painting sells for $23,686 across 6 lots. The median WIEDEMANN, WILHELM EGON (GUILLERMO) work on paper sells for $9,943 across 2 lots. Prices are premium-inclusive where the house records them; hammer-only prices exclude the buyer's premium, and some prices are not yet basis-verified.

### What is WIEDEMANN, WILHELM EGON (GUILLERMO)'s auction record?

WIEDEMANN, WILHELM EGON (GUILLERMO)'s auction record is $65,028, set in 2018. Whether that record price includes the buyer's premium is not yet verified.

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Data last updated 2026-11-01. OpeningBid tracks 15,222,099 auction lots from 571 auction houses, refreshed nightly.

Cite this page as: OpeningBid, “WIEDEMANN, WILHELM EGON (GUILLERMO) auction prices”, https://www.openingbid.art/artist/wilhelm-egon-wiedemann (updated 2026-11-01).

Historical auction data, not investment advice. Prices are premium-inclusive USD where the buyer's premium is recorded. Figures marked † are hammer prices (buyer's premium not included); ‡ marks a price whose basis is not yet verified. Non-USD results are converted at the sale month's rate.