diff --git a/src/dspace_api_missing_thumbnails.py b/src/dspace_api_missing_thumbnails.py
new file mode 100644
index 0000000..a66ecda
--- /dev/null
+++ b/src/dspace_api_missing_thumbnails.py
@@ -0,0 +1,107 @@
+"""
+##############################################################################################
+# desc: dspace_api_missing_thumbnails.py:
+#     Leverage the https://pypi.org/project/dspace-rest-client
+#     to test creating a DSpace API Resoorce Policy creation script.
+#     https://github.com/the-library-code/dspace-rest-python/blob/main/dspace_rest_client/client.py
+# usage:
+#  ./venv/bin/python src/dspace_api_missing_thumbnails.py \
+#      --logging_level DEBUG \
+#      --output /tmp/missing_thumbnails.txt
+# license: CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
+# date: July 25, 2025
+##############################################################################################
+"""
+import argparse
+import logging
+import os
+import pathlib
+import sys
+
+from utils import utilities as utils
+from utils.dspace_rest_client_local import DSpaceClientLocal
+
+DSPACE_CLIENT_TOKEN_REFRESH = 500
+
+
+def parse_args():
+    """
+    Parse command line arguments
+    """
+    parser = argparse.ArgumentParser()
+
+    parser.add_argument(
+        "--output", required=True, help="Location to store output file."
+    )
+    parser.add_argument(
+        "--logging_level", required=False, help="Logging level.", default="INFO"
+    )
+
+    return parser.parse_args()
+
+
+#
+def process(dspace_client, output_file, args):
+    """
+    Main processing function
+    """
+    items = dspace_client.search_objects_iter(
+        query="*:*", dso_type="item", embeds=["thumbnail"]
+    )
+    count = 0
+    for count, item in enumerate(items, start=1):
+
+        if count % DSPACE_CLIENT_TOKEN_REFRESH == 0:
+            # not sure if both are needed
+            dspace_client.authenticate()
+            dspace_client.refresh_token()
+
+        if item.embedded["thumbnail"] is None:
+            logging.info("%s (%s)", item.name, item.uuid)
+            output_file.write(f"{item.uuid}\n")
+
+
+def main():
+    """
+    Main entry point
+    """
+
+    args = parse_args()
+
+    # Base class should set this as an instance variable in the constructor
+    DSpaceClientLocal.ITER_PAGE_SIZE = 100
+    dspace_client = DSpaceClientLocal(fake_user_agent=False)
+    dspace_client.authenticate()
+
+    # don't set size over 100 otherwise a weird disconnect happens
+    # between the requested page size, actual result size and # of pages
+    # If 512 items and size is set to 500,
+    # https://github.com/DSpace/DSpace/issues/8723
+    # http://198.168.187.81:8080/server/api/discover/search/objects?dsoType=collection&page=0&size=500
+    # dspace_client.ITER_PAGE_SIZE = 100
+
+    # Configure logging
+    log_level = getattr(logging, args.logging_level.upper(), None)
+    if not isinstance(log_level, int):
+        raise ValueError(f"Invalid log level: {args.log}")
+    # Options: DEBUG, INFO, WARNING, ERROR, CRITICAL
+    logging.getLogger().setLevel(log_level)
+
+    utils.check_required_env_vars()
+
+    try:
+        dspace_client.authenticate()
+    except TypeError as e:
+        logging.error(
+            "Authentication error, check credentials and VPN (if applicable) [%s]", e
+        )
+        sys.exit(1)
+
+    pathlib.Path(os.path.dirname(args.output)).mkdir(parents=True, exist_ok=True)
+    with open(args.output, "wt", encoding="utf-8", newline="") as output_file:
+        process(dspace_client, output_file, args)
+
+
+#
+if __name__ == "__main__":
+    main()
diff --git a/src/dspace_api_resource_policy.py b/src/dspace_api_resource_policy.py
index fa74408..edbd39b 100644
--- a/src/dspace_api_resource_policy.py
+++ b/src/dspace_api_resource_policy.py
@@ -74,7 +74,7 @@ def update_item_resource_policy(dspace_client, item_id, resource_policy, embargo
     http://localhost:8080/server/api/authz/resourcepolicies/270
     """
 
-    # This code is based on the starting state and instructions described in this document: 
+    # This code is based on the starting state and instructions described in this document:
     # https://tdl-ir.tdl.org/server/api/core/bitstreams/aa922a36-e9cd-4bc6-811d-f78a230cf86d/content
     # The above document describes one starting state but I suspect there are other possible
     # starting states. The code flow is gathered from using the web UI and viewing the web request